{"id":3149,"date":"2026-05-15T14:05:57","date_gmt":"2026-05-15T07:05:57","guid":{"rendered":"https:\/\/bacte.vn\/?p=3149"},"modified":"2026-05-17T12:44:56","modified_gmt":"2026-05-17T05:44:56","slug":"3-dau-hieu-than-thu-tren-sau-rieng-lam-cay-mat-suc-giam-trai","status":"publish","type":"post","link":"https:\/\/bacte.vn\/en\/3-dau-hieu-than-thu-tren-sau-rieng-lam-cay-mat-suc-giam-trai\/","title":{"rendered":"3 D\u1ea5u hi\u1ec7u th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang l\u00e0m c\u00e2y m\u1ea5t s\u1ee9c, gi\u1ea3m tr\u00e1i"},"content":{"rendered":"

Th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang kh\u00f4ng x\u1eed l\u00fd s\u1edbm c\u00f3 th\u1ec3 khi\u1ebfn b\u00e0 con m\u1ea5t b\u00f4ng, h\u01b0 tr\u00e1i, h\u1ee5t ti\u1ec1n ngay trong m\u00f9a v\u1ee5.<\/strong> V\u00ec v\u1eady, b\u00e0 con c\u1ea7n n\u1eafm r\u00f5 c\u00e1ch tr\u1ecb b\u1ec7nh th\u00e1n th\u01b0 t\u1eeb s\u1edbm, kh\u00f4ng n\u00ean ch\u1edd \u0111\u1ebfn khi b\u1ec7nh lan m\u1ea1nh m\u1edbi x\u1eed l\u00fd. Vi\u1ec7c ph\u00f2ng tr\u1eeb b\u1ec7nh th\u00e1n th\u01b0 \u0111\u00fang l\u00fac s\u1ebd gi\u00fap c\u00e2y gi\u1ea3m \u00e1p l\u1ef1c b\u1ec7nh v\u00e0 c\u00f3 th\u1eddi gian ph\u1ee5c h\u1ed3i t\u1ed1t h\u01a1n.<\/p>\n

1. V\u00ec sao th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang nguy hi\u1ec3m h\u01a1n b\u00e0 con ngh\u0129?<\/h2>\n
\"Tr\u00e1i
Tr\u00e1i s\u1ea7u ri\u00eang b\u1ecb b\u1ec7nh th\u00e1n th\u01b0<\/figcaption><\/figure>\n

\u0110i\u1ec3m kh\u00f3 ch\u1ecbu c\u1ee7a b\u1ec7nh th\u00e1n th\u01b0 s\u1ea7u ri\u00eang<\/strong> l\u00e0 l\u00fac m\u1edbi xu\u1ea5t hi\u1ec7n, d\u1ea5u hi\u1ec7u th\u01b0\u1eddng ch\u01b0a qu\u00e1 n\u1eb7ng. B\u00e0 con nh\u00ecn s\u01a1 c\u00f3 th\u1ec3 th\u1ea5y c\u00e2y ch\u1ec9 h\u01a1i \u0111\u1ed1m l\u00e1, v\u00e0i \u0111\u1ecdt non kh\u00f4, v\u00e0i b\u00f4ng b\u1ecb th\u00e2m ho\u1eb7c m\u1ed9t \u00edt tr\u00e1i c\u00f3 v\u1ebft \u0111en. Nh\u01b0ng n\u1ebfu kh\u00f4ng x\u1eed l\u00fd s\u1edbm, b\u1ec7nh c\u00f3 th\u1ec3 l\u00e0m c\u00e2y suy d\u1ea7n.<\/p>\n

V\u1edbi c\u00e2y s\u1ea7u ri\u00eang, b\u1ed9 l\u00e1 kh\u1ecfe l\u00e0 n\u1ec1n \u0111\u1ec3 c\u00e2y quang h\u1ee3p, l\u00e0m b\u00f4ng, \u0111\u1eadu tr\u00e1i v\u00e0 nu\u00f4i tr\u00e1i. Khi l\u00e1 b\u1ecb b\u1ec7nh nhi\u1ec1u, c\u00e2y gi\u1ea3m s\u1ee9c nu\u00f4i. Khi b\u00f4ng b\u1ecb b\u1ec7nh, t\u1ef7 l\u1ec7 \u0111\u1eadu tr\u00e1i c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng. Khi tr\u00e1i b\u1ecb b\u1ec7nh, m\u1eabu m\u00e3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng tr\u00e1i c\u0169ng d\u1ec5 gi\u1ea3m. M\u1ed9t nghi\u00ean c\u1ee9u v\u1ec1 th\u00e1n th\u01b0 tr\u00ean hoa s\u1ea7u ri\u00eang ghi nh\u1eadn b\u1ec7nh c\u00f3 th\u1ec3 l\u00e0m hoa b\u1ecb kh\u00f4 v\u00e0 r\u1ee5ng, t\u1eeb \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ea3n l\u01b0\u1ee3ng.<\/p>\n

N\u00f3i d\u1ec5 hi\u1ec3u, th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 b\u1ec7nh l\u00e0m x\u1ea5u l\u00e1. N\u00f3 c\u00f3 th\u1ec3 k\u00e9o theo c\u1ea3 chu\u1ed7i v\u1ea5n \u0111\u1ec1: y\u1ebfu \u0111\u1ecdt, kh\u00f4 b\u00f4ng, gi\u1ea3m \u0111\u1eadu tr\u00e1i, tr\u00e1i x\u1ea5u m\u00e3 v\u00e0 c\u00e2y ph\u1ee5c h\u1ed3i ch\u1eadm sau m\u00f9a v\u1ee5.<\/p>\n

\u0110\u1ecdc th\u00eam: B\u1ec7nh th\u00e1n th\u01b0 h\u1ea1i s\u1ea7u ri\u00eang<\/a><\/p>\n

2. B\u1ec7nh th\u00e1n th\u01b0 s\u1ea7u ri\u00eang th\u01b0\u1eddng b\u00f9ng l\u00ean khi n\u00e0o?<\/h2>\n

B\u1ec7nh th\u00e1n th\u01b0<\/strong> th\u01b0\u1eddng ph\u00e1t tri\u1ec3n m\u1ea1nh khi v\u01b0\u1eddn c\u00f3 \u1ea9m \u0111\u1ed9 cao, m\u01b0a nhi\u1ec1u, t\u00e1n c\u00e2y r\u1eadm ho\u1eb7c l\u00e1, b\u00f4ng, tr\u00e1i b\u1ecb \u01b0\u1edbt l\u00e2u. M\u1ed9t s\u1ed1 ngu\u1ed3n k\u1ef9 thu\u1eadt v\u1ec1 th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang c\u0169ng ghi nh\u1eadn b\u1ec7nh do nh\u00f3m n\u1ea5m Colletotrichum<\/em> g\u00e2y ra v\u00e0 th\u01b0\u1eddng \u0111\u00e1ng ch\u00fa \u00fd \u1edf giai \u0111o\u1ea1n c\u00e2y ra \u0111\u1ecdt non, l\u00e1 non, ra hoa v\u00e0 \u0111\u1eadu tr\u00e1i.<\/p>\n

\"\"
V\u01b0\u1eddn c\u00e2y g\u1eb7p m\u01b0a la m\u00f4i tr\u01b0\u1eddng d\u1ec5 ph\u00e1t tri\u1ec3n b\u1ec7nh th\u00e1n th\u01b0<\/figcaption><\/figure>\n

\u1ede v\u01b0\u1eddn s\u1ea7u ri\u00eang, b\u00e0 con n\u00ean ch\u00fa \u00fd nh\u1ea5t sau nh\u1eefng \u0111\u1ee3t m\u01b0a d\u1ea7m, th\u1eddi ti\u1ebft \u00e2m u, v\u01b0\u1eddn thi\u1ebfu gi\u00f3 ho\u1eb7c \u0111\u1ea5t tho\u00e1t n\u01b0\u1edbc k\u00e9m. Khi \u0111\u1ea5t \u01b0\u1edbt l\u00e2u, b\u1ed9 r\u1ec5 d\u1ec5 y\u1ebfu. R\u1ec5 y\u1ebfu th\u00ec c\u00e2y h\u00fat dinh d\u01b0\u1ee1ng k\u00e9m, \u0111\u1ecdt non v\u00e0 b\u00f4ng c\u0169ng y\u1ebfu theo. L\u00fac n\u00e0y, n\u1ea5m b\u1ec7nh d\u1ec5 t\u1ea5n c\u00f4ng h\u01a1n.<\/p>\n

M\u1ed9t \u0111i\u1ec3m n\u1eefa l\u00e0 ngu\u1ed3n b\u1ec7nh c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i trong l\u00e1 b\u1ec7nh, b\u00f4ng b\u1ec7nh, c\u00e0nh b\u1ec7nh ho\u1eb7c tr\u00e1i b\u1ec7nh c\u00f2n s\u00f3t trong v\u01b0\u1eddn. N\u1ebfu b\u00e0 con kh\u00f4ng d\u1ecdn s\u1ea1ch, g\u1eb7p m\u01b0a ho\u1eb7c n\u01b0\u1edbc t\u01b0\u1edbi m\u1ea1nh, m\u1ea7m b\u1ec7nh c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c l\u00e2y lan sang ph\u1ea7n c\u00e2y kh\u1ecfe.<\/p>\n

T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 b\u1ec7nh th\u00e1n th\u01b0: B\u1ec7nh th\u00e1n th\u01b0 l\u00e0 g\u00ec? C\u00e1ch ph\u00f2ng tr\u1ecb \u0111\u1ec3 c\u00e2y kh\u1ecfe, tr\u00e1i kh\u00f4ng r\u1ee5ng<\/a><\/p>\n

3. D\u1ea5u hi\u1ec7u th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang theo t\u1eebng giai \u0111o\u1ea1n c\u1ee7a v\u01b0\u1eddn<\/h2>\n

Thay v\u00ec ch\u1ec9 nh\u00ecn m\u1ed9t d\u1ea5u hi\u1ec7u, b\u00e0 con n\u00ean quan s\u00e1t theo giai \u0111o\u1ea1n sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y. Nh\u01b0 v\u1eady s\u1ebd d\u1ec5 bi\u1ebft b\u1ec7nh \u0111ang \u1ea3nh h\u01b0\u1edfng t\u1edbi ph\u1ea7n n\u00e0o c\u1ee7a c\u00e2y v\u00e0 n\u00ean x\u1eed l\u00fd \u1edf \u0111\u00e2u tr\u01b0\u1edbc.<\/p>\n

3.1. Khi s\u1ea7u ri\u00eang ra \u0111\u1ecdt non<\/h3>\n

\u1ede giai \u0111o\u1ea1n ra \u0111\u1ecdt, th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang<\/strong> th\u01b0\u1eddng l\u00e0m l\u00e1 non xu\u1ea5t hi\u1ec7n v\u1ebft n\u00e2u, n\u00e2u \u0111en ho\u1eb7c ch\u00e1y m\u00e9p. \u0110\u1ecdt non c\u00f3 th\u1ec3 b\u1ecb th\u00e2m, kh\u00f4 l\u1ea1i, ch\u1eadm bung l\u00e1 ho\u1eb7c ph\u00e1t tri\u1ec3n kh\u00f4ng \u0111\u1ec1u.<\/p>\n

N\u1ebfu b\u1ec7nh xu\u1ea5t hi\u1ec7n nhi\u1ec1u \u1edf \u0111\u1ecdt, c\u00e2y s\u1ebd ra l\u00e1 k\u00e9m h\u01a1n. V\u1ec1 sau, b\u1ed9 l\u00e1 kh\u00f4ng \u0111\u1ee7 kh\u1ecfe th\u00ec c\u00e2y c\u0169ng kh\u00f3 nu\u00f4i b\u00f4ng v\u00e0 nu\u00f4i tr\u00e1i t\u1ed1t.<\/p>\n

3.2. Khi s\u1ea7u ri\u00eang l\u00e0m b\u00f4ng<\/h3>\n
\"\"
B\u1ec7nh th\u00e1n th\u01b0 s\u1ea7u ri\u00eang tr\u00ean b\u00f4ng<\/figcaption><\/figure>\n

Giai \u0111o\u1ea1n l\u00e0m b\u00f4ng l\u00e0 l\u00fac b\u00e0 con c\u1ea7n quan s\u00e1t k\u1ef9. B\u00f4ng b\u1ecb b\u1ec7nh c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n v\u1ebft n\u00e2u \u0111en, kh\u00f4 d\u1ea7n ho\u1eb7c r\u1ee5ng s\u1edbm. M\u1ed9t s\u1ed1 ngu\u1ed3n m\u00f4 t\u1ea3 th\u00e1n th\u01b0 hoa s\u1ea7u ri\u00eang c\u00f3 th\u1ec3 l\u00e0m b\u00f4ng ng\u01b0ng ph\u00e1t tri\u1ec3n, kh\u00f4 t\u1eeb cu\u1ed1ng ho\u1eb7c \u0111\u1ea7u c\u00e1nh hoa v\u00e0 r\u1ee5ng nhi\u1ec1u khi b\u1ec7nh n\u1eb7ng.<\/p>\n

Ch\u1ed7 n\u00e0y d\u1ec5 nh\u1ea7m v\u1edbi r\u1ee5ng sinh l\u00fd ho\u1eb7c c\u00e2y thi\u1ebfu dinh d\u01b0\u1ee1ng, n\u00ean b\u00e0 con n\u00ean xem th\u00eam th\u1eddi ti\u1ebft g\u1ea7n \u0111\u00f3. N\u1ebfu v\u1eeba qua c\u00f3 m\u01b0a \u1ea9m k\u00e9o d\u00e0i, v\u01b0\u1eddn r\u1eadm, b\u00f4ng th\u00e2m \u0111en b\u1ea5t th\u01b0\u1eddng th\u00ec c\u1ea7n ngh\u0129 \u0111\u1ebfn b\u1ec7nh th\u00e1n th\u01b0 s\u1ea7u ri\u00eang<\/strong>.<\/p>\n

3.3. Khi s\u1ea7u ri\u00eang \u0111ang nu\u00f4i tr\u00e1i<\/h3>\n

Tr\u00ean tr\u00e1i, b\u1ec7nh c\u00f3 th\u1ec3 l\u00e0m xu\u1ea5t hi\u1ec7n v\u1ebft \u0111\u1ed1m s\u1eabm m\u00e0u, v\u1ebft th\u00e2m ho\u1eb7c v\u00f9ng b\u1ec7nh lan r\u1ed9ng tr\u00ean v\u1ecf. M\u1ed9t s\u1ed1 t\u00e0i li\u1ec7u m\u00f4 t\u1ea3 th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang c\u00f3 th\u1ec3 g\u00e2y \u0111\u1ed1m t\u1ed1i m\u00e0u tr\u00ean v\u1ecf v\u00e0 ph\u1ea7n th\u1ecbt tr\u00e1i, l\u00e0m \u1ea3nh h\u01b0\u1edfng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 n\u0103ng su\u1ea5t.<\/p>\n

V\u1edbi v\u01b0\u1eddn g\u1ea7n thu ho\u1ea1ch, b\u00e0 con c\u00e0ng c\u1ea7n x\u1eed l\u00fd c\u1ea9n th\u1eadn. Kh\u00f4ng n\u00ean d\u00f9ng s\u1ea3n ph\u1ea9m t\u00f9y ti\u1ec7n, kh\u00f4ng t\u1ef1 \u00fd t\u0103ng li\u1ec1u v\u00e0 c\u1ea7n \u0111\u1ecdc k\u1ef9 h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng. \u1ede giai \u0111o\u1ea1n n\u00e0y, c\u00e1ch tr\u1ecb b\u1ec7nh th\u00e1n th\u01b0 c\u1ea7n l\u00e0m c\u1ea9n th\u1eadn h\u01a1n, v\u1eeba x\u1eed l\u00fd \u0111\u00fang d\u1ea5u hi\u1ec7u b\u1ec7nh v\u1eeba ch\u00fa \u00fd an to\u00e0n cho c\u00e2y v\u00e0 tr\u00e1i.<\/p>\n

4. Sai l\u1ea7m l\u00e0m th\u00e1n th\u01b0 tr\u00ean s\u1ea7u ri\u00eang d\u1ec5 t\u00e1i l\u1ea1i<\/h2>\n

Nhi\u1ec1u v\u01b0\u1eddn x\u1eed l\u00fd m\u1ed9t l\u1ea7n th\u1ea5y b\u1ec7nh gi\u1ea3m, nh\u01b0ng sau v\u00e0i c\u01a1n m\u01b0a b\u1ec7nh l\u1ea1i quay l\u1ea1i. Nguy\u00ean nh\u00e2n th\u01b0\u1eddng kh\u00f4ng n\u1eb1m \u1edf m\u1ed9t vi\u1ec7c duy nh\u1ea5t, m\u00e0 do v\u01b0\u1eddn ch\u01b0a \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ed3ng b\u1ed9.<\/p>\n